Isomers pounds which have the same molecular formula, but differ in the way the atoms are arranged.
Stereochemistry
Stereoisomers
构造异构Constitutional
Isomers
构象异构Conformational
Isomers
构型异构Configurational
Isomer s
几何异构Geometric Isomers
对映异构
Enantiomers
手性分子和对映异构体
产生对映异构现象的结构依据是手性(Chirality)。什么叫手性呢?
右手不能戴左手手套
Superposable ?
No
Is the interaction of a right or left hand glove with a hand the same?
No
I
Br
Cl
Cl
Br
I
Cl
Cl
Are these molecules identical?
Superposable
Are these molecules identical?
I
Br
Cl
I
Br
Cl
乳酸
分析有旋光性的乳酸和没有旋光性的丙酸在结构上的
差别:
乳酸所以具有旋光性,是因为分子中有一个*C原子(不对称碳原子或手性碳)。性碳)。
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